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Python Developer Jobs in Reston, VA (NOW HIRING)

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Python Developer L3

Fairfax, VA · On-site

$49.75 - $68.75/hr

Python Developer L3 FTE only, No C2C Location: 4 days/week onsite in Merrifield, VA - Mosaic District We are growing!! ASCENDING Inc, has doubled its revenue for the 3rd year in a row and our main ...

SES

Gen AI/Python Developer

Reston, VA · On-site

$52.25 - $72/hr

Systems Engineering Services is seeking an AI/Python Developer with a Java Certification based out of the Washington DC/Reston area. Top 5 Technical Skills: * Python * Gen AI * SQL * AWS Data ...

eSolutionsFirst, LLC

Sr. Python Developer

Mclean, VA · On-site

$51.50 - $71/hr

Python Full Stack Developer Mclean, VA Must Have Qualifications: Must have practical experience with Python, front even technologies, React, JavaScript, and web application development, along with ...

Ekcel Technologies Inc

Sr AWS Python Developer

Reston, VA · On-site

$126K - $170K/yr

Sr AWS Python Developer (2 positions) Location- Reston, VA (In person Client interview) day one onsite Experience : 8 to 18 years FTE or C2C We are looking for Visa independent candidates only for ...

Navtech, Inc.

Senior Python Developer

Mclean, VA · On-site

$123K - $166K/yr

... Python Developer Experience with Python frameworks e.g., Django, Flask. • Good experience on writing the test cases, Unit Testing, and automation test by using PYTEST Understanding of databases and ...

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

Palnar

Sr. Python Developer

Mclean, VA · On-site

$123K - $166K/yr

Master's degree in Computer Science, Software Engineering or related technical field Demonstrated knowledge of: * Python, Pandas and other popular Python libraries * Java * Testing frameworks such as ...

MANTECH

Senior Python Developer

Herndon, VA

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

MANTECH

Senior Python Developer

Herndon, VA

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

MANTECH

Senior Python Developer

Herndon, VA · On-site

$124K - $168K/yr

MANTECH seeks a driven and mission-focused Senior Python Developer to join our elite team based in Herndon, VA . In this role, you will contribute directly to innovative projects that support the ...

Cymertek

Java, Scala, Python Developer

Reston, VA · On-site

Java, Scala, Python Developer LOCATION Reston, VA 20190 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly skilled ...

Cymertek

Java, Scala, Python Developer

Chantilly, VA · On-site

Java, Scala, Python Developer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly ...

Cymertek

Java, Scala, Python Developer

Tysons, VA · On-site

Java, Scala, Python Developer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a versatile and highly skilled ...

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How much do python developer jobs pay per hour?

As of Jul 9, 2026, the average hourly pay for python developer in Reston, VA is $60.99, according to ZipRecruiter salary data. Most workers in this role earn between $50.29 and $69.28 per hour, depending on experience, location, and employer.

What are some common challenges Python Developers face when working on large-scale projects?

Python Developers working on large-scale projects often encounter challenges such as managing codebase complexity, ensuring consistent code style among team members, and optimizing application performance. Collaboration with other developers becomes essential, often requiring the use of version control systems and code review processes. Additionally, integrating Python code with other technologies or legacy systems can present unique compatibility and testing hurdles. Proactively adopting best practices like modular architecture and thorough documentation can help mitigate these issues.

What Does a Python Developer Do?

As a Python developer, your job is to use the Python programming language to develop, implement, and debug a project. In this role, you may create an application for your employer, design the framework for your code, build tools as necessary to get the job done, create websites, or publish new services. Python developers often work with data collection and analytics to create useful answers to questions and provide insight where it's needed most. Like most programming positions, the specifics of this job vary based on the needs of your employer. Some Python developers work as independent contractors instead of being exclusive to one company.

What is the difference between Python Developer vs Java Developer?

AspectPython DeveloperJava Developer
Required CredentialsBachelor's in CS or related field, Python certifications (optional)Bachelor's in CS or related field, Java certifications (optional)
Work EnvironmentWeb development, data science, automation, scriptingEnterprise applications, Android development, backend systems
Industry UsageTech startups, data companies, automation firmsFinancial services, enterprise software, mobile app companies
Common Search/ComparisonOften compared for backend and scripting rolesCompared for enterprise and mobile app development

Python Developers and Java Developers share similar educational backgrounds and often work in backend environments. However, Python is favored for data science, scripting, and rapid development, while Java is preferred for large-scale enterprise applications and Android development. Both roles are highly sought after, but their industry focus and project types differ.

What are the key skills and qualifications needed to thrive as a Python Developer, and why are they important?

To thrive as a Python Developer, you need strong programming skills in Python, a solid understanding of algorithms and data structures, and often a degree in computer science or a related field. Familiarity with frameworks like Django or Flask, version control systems such as Git, and knowledge of databases and cloud services are commonly required. Problem-solving ability, attention to detail, and effective communication help developers collaborate and deliver high-quality code. These skills and qualities are vital to building efficient, scalable software solutions and contributing effectively to development teams.

What does a Python Developer do?

A Python Developer designs, codes, and maintains software applications using the Python programming language. They often work on web applications, data analysis, automation scripts, and more. Their responsibilities can include writing and testing code, debugging programs, integrating third-party services, and collaborating with other developers and stakeholders. Python Developers are valued for their ability to create efficient, scalable, and readable code. They may also be involved in deploying applications and maintaining technical documentation.
More about Python Developer jobs
What are the most commonly searched types of Python Developer jobs in Reston, VA? The most popular types of Python Developer jobs in Reston, VA are:
What are popular job titles related to Python Developer jobs in Reston, VA? For Python Developer jobs in Reston, VA, the most frequently searched job titles are:
What job categories do people searching Python Developer jobs in Reston, VA look for? The top searched job categories for Python Developer jobs in Reston, VA are:
What cities near Reston, VA are hiring for Python Developer jobs? Cities near Reston, VA with the most Python Developer job openings:
Python Developer jobs near you
Infographic showing various Python Developer job openings in Reston, VA as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $126,853 per year, or $61 per hour.
Python Developer L3

Python Developer L3

ASCENDING

Fairfax, VA • On-site

$49.75 - $68.75/hr

Full-time

Posted 3 days ago

Job description

Python Developer L3
FTE only, No C2C
Location: 4 days/week onsite in Merrifield, VA – Mosaic District

We are growing!! ASCENDING Inc, has doubled its revenue for the 3rd year in a row and our main technical delivery manager/technical co-founder is running out of bandwidth to manage all current professional services projects. We are looking for a strong, experienced candidate with 3+ years of experience in software development and DevOps who can come in, learn some of the individual projects and eventually work their way to managing teams and delivering for our client(s). The ideal candidate will have a degree in computer science, the ability to code backend and have demonstrated experience working in AWS environments and intimate knowledge of their services. Consulting experience and direct work with managing stakeholders/end clients is a big part of this role. Having the necessary written and verbal communication skills to do so effectively is paramount.
 

Must have:

  • Bachelor's or Master's degree in computer science, electrical engineering, physics or math
  • 3+ years experience in the US.
  • Backend development experience. 
  • Strong client-facing communication skills. 
  • Strong technical fundamentals of software engineering and/or DevOps (must be able to do the work from scratch if needed).
  • Extensive software engineering experience and ability to write object oriented code in Python.
  • Expertise in developing applications in the AWS cloud and extensive experience working with AWS services.

Preferred:

  • Extensive experience working with DevOps.
  • Experience working in a consulting role and/or having the ability to do hands on technical work as well as driving projects and solely managing stakeholders/end clients.

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